More handy catalogs:

Avant Gardens
Dartmouth, Mass.
This catalog of unusual perennials is so sophisticated and understated that it doesn't need flashy illustrations.

High Country Gardens
Santa Fe, N.M.
Great for Western gardeners, and in a few years all our gardens may be parched and windswept.

Seeds of Change
Santa Fe, N.M.
So organic you may feel too unworthy to order anything. But this is definitely the place if you want to grow 15 types of garlic and 29 kinds of peppers.